3 years ago

Why can't all mixtures be classified as solutions?

Chemistry

1 answer:

shusha [124]3 years ago

7 0

D. Not all mixtures are heterogeneous

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Why is photosynthesis an example of chemical change, and why is it classified as endothermic?

Alexeev081 [22]

Answer:

It is an example of chemical reaction because carbon dioxide and water are converted into glucose and oxygen. If that makes any sense. and it is classified as endothermic because it requires the input of energy in the form of solar energy.

Explanation:

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3 years ago

Define and give an example of an acid and of a base.

Debora [2.8K]

A Brønsted-Lowry acid is defined as a compound that gives hydronium ions to another compound—for example, hydrochloric acid gives H+ ions to compounds it reacts with. Brønsted-Lowry bases are compounds that can accept hydronium ions—when ammonia gets a hydronium ion from HCl, it forms the ammonium ion.

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3 years ago

Which product forms from a reaction between beryllium (Be) and arsenic (As)?

Gekata [30.6K]

Answer:

Be3As2

Explanation:

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3 years ago

A compound contains nitrogen and a metal. This compound goes through a combustion reaction such that compound X is produced from

tia_tia [17]

Answer:

The correct answer is: X is nitrogen dioxide, and Y is a metal oxide

Explanation:

Combustion of compound of containing nitrogen and metal will give nitrogen dioxide and metal oxide as product. During combustion reaction a compound reacts with oxygen in order to yield oxides of elements present in the compound.

The general equation is given as:

$4M_3N_x+7xO_2\rightarrow 4xNO_2+6M_2O_x$

Hence, the correct answer is :X is nitrogen dioxide, and Y is a metal oxide.

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3 years ago

So it will help you see what is 5 times 9 it is 40.

dolphi86 [110]

Answer:

Explanation:

5+5+5+5+5+5+5+5+5=40

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3 years ago